From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Thu, 27 Feb 2014 05:11:54 +0000 (-0500)
Subject: journal: forget file after encountering an error
X-Git-Tag: v211~115
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=a9a245c128af6c0418085062c60251bc51fa4a94;ds=sidebyside

journal: forget file after encountering an error

If we encounter an inconsistency in a file, let's just
ignore it. Otherwise, after previous patch, we would try,
and fail, to use this file in every invocation of sd_journal_next
or sd_journal_previous that happens afterwards.
---

diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
index ef455e901..b54bc2109 100644
--- a/src/journal/sd-journal.c
+++ b/src/journal/sd-journal.c
@@ -51,6 +51,8 @@
 
 #define DEFAULT_DATA_THRESHOLD (64*1024)
 
+static void remove_file_real(sd_journal *j, JournalFile *f);
+
 static bool journal_pid_changed(sd_journal *j) {
         assert(j);
 
@@ -885,6 +887,7 @@ static int real_journal_next(sd_journal *j, direction_t direction) {
                 r = next_beyond_location(j, f, direction, &o, &p);
                 if (r < 0) {
                         log_debug("Can't iterate through %s, ignoring: %s", f->path, strerror(-r));
+                        remove_file_real(j, f);
                         continue;
                 } else if (r == 0)
                         continue;
@@ -1339,7 +1342,7 @@ static int add_file(sd_journal *j, const char *prefix, const char *filename) {
 }
 
 static int remove_file(sd_journal *j, const char *prefix, const char *filename) {
-        char *path;
+        _cleanup_free_ char *path;
         JournalFile *f;
 
         assert(j);
@@ -1351,10 +1354,17 @@ static int remove_file(sd_journal *j, const char *prefix, const char *filename)
                 return -ENOMEM;
 
         f = hashmap_get(j->files, path);
-        free(path);
         if (!f)
                 return 0;
 
+        remove_file_real(j, f);
+        return 0;
+}
+
+static void remove_file_real(sd_journal *j, JournalFile *f) {
+        assert(j);
+        assert(f);
+
         hashmap_remove(j->files, f->path);
 
         log_debug("File %s removed.", f->path);
@@ -1372,8 +1382,6 @@ static int remove_file(sd_journal *j, const char *prefix, const char *filename)
         journal_file_close(f);
 
         j->current_invalidate_counter ++;
-
-        return 0;
 }
 
 static int add_directory(sd_journal *j, const char *prefix, const char *dirname) {